Compositions



material.

wacwposmows, wuss neierence txaminer COATING OR PLASTIC UNITED STATES "PATENT .oFFIoE.

CHARLES FBOUIDE CURTIS, OF PONTABDAWE, WALES.

COMPOSITION FOR THE IANUFACTUBE OF LIN'INGS OF ACID-POTS OR SUCH LIE 1,311,05L Specification of Letters Patent. Patentgd J uly 22, 1919, I Dllwhlg. Application filed April 19, 1919. I0. 891,359. i

v To all whom it may concern: This composition is mixed together and Be it known that I, CHARLES Fnounn Cunmoistened. It may be laid upon a founda- TIS, a subject of the King of Great Britain, tion with a trowel and left to harden, but, residing at 4 Gwyn street, Alltwen Hill, most probably, its chief use will be the 50 5 Pontardawe, in the county of Glamorgan, manufacture of homogeneous pots or other South Wales, have invented a certain new or vessels, which may be molded either with Improved Composition for the Manufacture or-without pressure, hydraulic or otherwise, 5 of Lining of Acid-Pots or Such Like Vessels any suitable kind of molds being employed F and Analogous Purposes, of which the folfor the purpose.

lowing is a specification. The composition is also useful for the This invention consists of a new or im- -manufacture of electric fuse boxes, especially proved composition for the manufacture of for coal mines, inasmuch as such a box could base linings of acid pots or such like vessels not burn up, as iron boxessometimes do by and analogous purposes. an electric are set up after the burning of 60 For the inner lining in contact with acids the fuse. p

an acid resisting material would be used. "One of the qualities of my present com- My new composition will withstand a higl\position is that it is electrically nonconductemperature, much higher even than the tive. melting point of lead, which is the material I claim 65 2 still commonly used. A composition for the manufacture of An essential of my present composition is lining of acid pots or such like vessels and a powder, which occurs as a waste residue analogous purposes, of which the ingrediin furnaces after pyrites has been burned or cuts and proportions are approximately otherwise treated, to extract the sulfur or as follows: sawdust 30%, Portland cement 7 other chemicals or minerals. It is a burnt whiting 10% and the residue dust from dust of no further use to the manufacturer, burnt pyrites 30%, the resultant mixture and, as is well known, is an acid resisting being moistened for use in any of the ways herein spec or for analogous purposes. It has the appearance of a red oxid, and is In testimony whereof, I have signed my 7 3 too fine for use as ballast. Large quantities name to this specification in the presence of of it are available in South Vales and elsetwo subscribing witnesses.

where. Thou h usually rejected as a fur- CHARLES FROUZDE CURTIS. nace waste it as been discovered by me to Witnesses: be of use when mixed with other ingredients, I Amman H. STANLEY,

to form my present composition. A 3 The present composition comprises the above residue, together with sawdust, Portland cement and whiting. The proportions are approximately as follows:

SAMUEL G. Anrono.

Sawdust 30% 7 Portland cement 30% Whiting 10% copies of this patent my be obtained for five cents each, by addressing the Gomminioner of Patents, Washington, D. 0. 

